證明1+1/2^2+1/3^2+1/4^2+…+1/100^2
證明1+1/2^2+1/3^2+1/4^2+…+1/100^2
數學人氣:646 ℃時間:2020-06-03 13:27:46
優(yōu)質解答
1+1/2^2+1/3^2+1/4^2+…+1/100^2<1+1/2^2+1/3^2+1/3*4+1/4*5...+1/99*100=1+1/4+1/9+(1/3-1/4)+(1/4-1/5)...+(1/99-1/100)=1+1/4+1/9+1/3-1/100=61/36-1/100<61/36
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